Vulnerability Monitor

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CVE-2023-25136

OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during options.kex_algorithms handling. This is fixed in OpenSSH 9.2. The double free can be leveraged, by an unauthenticated remote attacker in the default configuration, to jump to any location in the sshd address space. One third-party report states "remote code execution is theoretically possible."

Published

2023-02-03T06:15:09.350

Last Modified

2024-11-21T07:49:10.877

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-415

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	openbsd	openssh	9.1	Yes
Operating System	fedoraproject	fedora	37	Yes
Operating System	fedoraproject	fedora	38	Yes
Application	netapp	ontap_select_deploy_administration_utility	-	Yes
Operating System	netapp	a250_firmware	-	Yes
Hardware	netapp	a250	-	No
Operating System	netapp	500f_firmware	-	Yes
Hardware	netapp	500f	-	No
Operating System	netapp	c250_firmware	-	Yes
Hardware	netapp	c250	-	No

References

http://www.openwall.com/lists/oss-security/2023/02/13/1 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/02/22/1 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/02/22/2 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/02/23/3 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/03/06/1 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/03/09/2 Mailing List, Third Party Advisory ([email protected])
https://bugzilla.mindrot.org/show_bug.cgi?id=3522 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig Patch, Vendor Advisory ([email protected])
https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946 Patch, Third Party Advisory ([email protected])
https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/ Exploit, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/ ([email protected])
https://news.ycombinator.com/item?id=34711565 Issue Tracking, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202307-01 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20230309-0003/ Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2023/02/02/2 Exploit, Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2023/02/13/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/02/22/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/02/22/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/02/23/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/03/06/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2023/03/09/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mindrot.org/show_bug.cgi?id=3522 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/017_sshd.patch.sig Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/openssh/openssh-portable/commit/486c4dc3b83b4b67d663fb0fa62bc24138ec3946 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://jfrog.com/blog/openssh-pre-auth-double-free-cve-2023-25136-writeup-and-proof-of-concept/ Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGAUIXJ3TEKCRKVWFQ6GDAGQFTIIGQQP/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7LKQDFZWKYHQ65TBSH2X2HJQ4V2THS3/ (af854a3a-2127-422b-91ae-364da2661108)
https://news.ycombinator.com/item?id=34711565 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202307-01 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20230309-0003/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2023/02/02/2 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)